Railway-track construction



June 24, 1930. J. J. BURNS RAILWAY TRACK CONSTRUCTION Filed Sept. 28, '1928 I N VEN TOR. ar/zs dames J ATTORNEYS.

Patented .lune 24, 1936 JAMES J". BURNS, F DETROT, MICHIGAN RAILWAY-TRACK CONSTRUCTON Application mea September es, 1928. semi no. 308,935.

Myinvention relates to an improved type of railway track and particularly to one adapted for use in cities and suburban Vsections where there is paving between and along y the'outer sides of the rails.

1 Two well known forms of railway track have heretofore been employed; the one ein ploys wood or steel cross-ties arranged at intervals upon a suitable foundation bed and 10 supporting the rails; and the second includes cross-ties and rails fastened securely together and embedded as a unit in the concrete base. The lirst construction is somewhat'fiexible and resilient, cushioning the shock of travel f and absorbing the noise, however there is no support for the rails at the intervals between the ties, while with the second construction, though the'rails are supported throughoutJ their length, the structure is rigid, does not 26 absorb shock of travel and is very noisy.

' It is ydesirable to cushion the shock of travel so that all the shock thereof is not taken by the car and so that the'noise is disM sipated and yet a flexible construction laid in concrete serves to break up the pavement while with the rigid type there is no absorption by the track of the shock of travel or the noise and it is all taken by the car.

My improved track embodies advantages of the rigid and the flexible type and eliminates certain disadvantages. I provide a rigid foundation bed which may preferably be formed of concrete and within which are embedded parallel spaced apart rail supporting cushions upon which the rails are carried.

These cushions are here shown as arranged within and along the bottom of channels within which the rails are disposed and the interior'of lwhich channel is lilled with a sound-deadening composition which also preferably extends over the foundation bed between the rails and may constitute the top layer of asphalt commonly used in street paving.

Novel fastening means are employed to secure each rail in place which include fasteners arranged within the channels engaging the rails and extending through the bottom of the channels to engage cross-ties arranged at intervals underneath the vchannels vway embodying my invention. v

and adapted to hold them in `spaced apart relationship. These fasteners are removable to loosen the rail without breaking up the concrete bed or disturbing any more of the paving thanthat within the channel itself. U My improvement insures ample bearing on the base throughout the entire length of the rails for the distribution of the load; cushions the shock of the rails before it vreaches the rigid base; prevents sagging of the rail joints; absorbs noise of travel over the rails; minimizes leakage of electric return currents from the rails; and facilitates installation, elevation, removal or renewal of the rails. My improved type of construct-ion also possesses other advantages and meritorious features which will more fully appear from the following specification, appended claims and accompanying drawing, wherein- Fig. 1 is a plan of a portion of a tracl-.17a

Fig. 2 is a cross-sectional view taken on line 2 2 of Fig. l. Y

Fig. 3 is a cross-sectional view taken on line 3 3 of Fig. 2. .75

Fig. 4 is a cross-sectional view taken on line 4 4 of Fig. 8. y

The foundation bed may preferably be formed of concrete and is indicated by the reference numeral 10. A pair of channel members 12 are embedded in parallel spaced apart relationship in this concrete bed 10.

`These channels may be formed in one or two sections. In F ig. 2 at the right the channel is formed in two sections while at the left ity is formed in a single section. Disposed within each channel and covering the bottom thereof is a layer of cushioning material 14 which may be a fibrous asphaltum impreg-A nated composition. The rail 16 is supported upon this layer of cushioning material.

Channel cross-ties 18 are arranged at intervals underneath the channels 12, and adapted to hold them in spaced apart relationship and anchors 'them in the base. Means are employed to fasten down the rails which include clips 20 adapted to seat within the channel 16 alongside the base flange of the rail and so formed as to engage 'over said base flange and bolts 22 which extend 100 sipates the noise of the V- of which street ,paving is the fastening bolts.

freely through said clips, through the bottom of the channels 12, and into the channel ofv the cross-tie 18 where they thread into nuts 524i seated within the channel of said cross-tie. The rail may be readily removed or fastened in place by releasing or threading down these bolts 22. The nuts are not only seated within the `channel cross-tie but they are, as will be apparent, held securely in place therein by the concrete of the base filling the channel of the cross-tie. i

Suitable composition filler material 26, preferably of a sound deadening character, is disposed within each channel 12 about the rail 16 and forms a separate sec'tionfr-om the concrete of the base which absorbs and disshock of road travel; This particular material may be the asphalt formed and may be extended as at 2S over theconcrete base between the rails andoutwardly as at 30 therebeyond.

The side walls of the channels 12 serve to separate the material within the channel immediately adjacentto the rail from the remai-nder of the concrete base which prevents the transmission of sound to the concrete base, and the `cushion arranged underneath the rail absorbs the shock of travel and gives a resiliency to the rail and likewise eliminates the breaking up of the concrete base due to the impact produced by travel over the rail.

Obviously the rails may be readily placed in position or removed without tearing away the concrete base merely by [removing the material within each channel and loosening These bolts thread in and out of the nuts 24 which are xed in the base 10` due to the method in which they are supported in the crossties 18.

l/Vhat I claim is: f

1. A railway track comprising a foundation bed, a Apair of parallel spaced apart rail receiving channels embedded therein. a

'layer of cushioning material disposed within Vthe bottom of each channel, a rail within each channel supported upon'said cushioning ,materiak channel cross ties embedded in the bed atintervals underneath said rail receiving channels, fastening means comprising a the rail and extending` through the rail receiving channel into the channel of the cross tie and a cooperating' part arranged within the channel of the cross tie coupled with said first mentioned part to releasably hold said rail down and determine the interval between the rail receiving channels.

2. A railway track comprising` a foundation bed, a pair of parallel spaced apart rail receiving channels embedded therein, a layer of'cushioning material disposed within the bottom of each channel, a rail within each "channel supported uponfsaid cushioning material, channel cross ties embedded in the bed porting members,

bers embedded in said bed, a pair of spaced A'apart parallel'railway rails positioned, one

upon each rail supporting member, each rail supporting member having a base portion upon which the rail rests and an upright portion projecting upwardly from the base portion and spaced from the rail, cushioning material arrangel within and upon each rail supporting member alongside of and underneath the rail carried thereby, cross ties ar" ranged at intervals underneath said rail snpfastening means engaging each rail and extending through the base of the rail supporting member and connected with the cross ties there underneath securing said rails, supporting members and cross ties together.

4. A railway, track comprising, in combination,-a foimdation bed, a pair plates, cross ties arranged underneath said plates, nuts carried said plates, a pair of railway rails one -supported upon and extending lengthwise 'of each plate, and fastening bolts engaging the rail and extending through said plate into said nuts carried by the ties to secure said rails, plates and ties together.

5, A railway track comprising, in combination, a foundation bed, a pair of spaced apart substantially parallel rail supporting plates, cross ties arranged underneath said plates, a pair of railway rails one mounted upon and extending lengthwise of each plate, fastening means comprising parts carried by each tie and cooperating parts engaging the rai-ls and extending through said plates and detachably connected with the parts carried by the ties to secure said plates, rails and ties together, said plates and ties being embedded as a unit in said foundation bed.

6. A railway track comprising, in combination, a foundation bed, a plurality of cross ties arranged at intervals, spaced apart rail supporting channels extending over said cross ties and secured thereto forming a unitary rail supporting framework, cushioning material disposed within each channel, said framework being embedded as a unit in said foundation bed,v a pair of railway rails one supported within .each channel upon said cushioning material,

of spaced apart substantially parallel rail supporting' by said ties underneath a pair of parallel i i 7. A railway track comprising, in combii nation with a foundation bed, arail supporting frameworkembeddedthereincomprisingcross ties, a pair of parallel spaced apart rail supporting plates carried by said ties, an upright partition member associated with each plate, a layer of cushioning material carried by each plate, said vties, plates and partition members secured together as a unit and embedded in the foundation bed, and a pair of parallel spaced apart railway rails one secured upon each plate and supported upon the cushioning material carried thereby.

8. A railway track comprising, in combination with a foundation bed, cross ties, rail supporting plates arranged upon and secured rigidly to said cross ties, said cross ties and plates forming a rigid rail supporting framework embedded as a unit in said foundation bed, and a railway rail extending lengthwise over and yieldingly supported upon each supporting plate and removably secured thereto.

9. In combination with a rail supporting structure, a cross tie of U-shaped channel structure provided with an aperture in one channel wall and having a nut seated in said channel in alignment with said aperture.

10. In combination with a rail supporting structure, a cross tie of U-shaped channel structure provided with a plurality of spaced apart apertures in one channel wall, and a plurality of nuts seated in said channel in alignment with said apertures.

11. In combination with a rail supporting structure, a cross tie of U-shaped channel structure provided with a plurality of spaced apart apertures in one channel wall, a plurality of nuts seated in said channel in alignment with said apertures, and a rail supporting channel supported across said tie having one or more apertures in alignment with certain of said cross tie apertures.

12. In combination with a rail supporting structure, a cross tie of U-shaped channel structure provided with a plurality of spaced apart apertures in one channel wall, a plurality of nuts seated in said channel in alignment with said apertures, a rail supporting channel supported across said tie having one or more apertures in alignment with certain of said cross tie apertures, and a rail secured in the trough of said supporting channel by means of a clip held th'ereagainst, said assembly being securely fastened together by a bolt extending through said clip and threaded into said nut.

In testimony whereof, I, JAMES J. BURNS, sign this specification.

JAMES J. BURNS. 

